Conversion formula

The conversion factor from fluid ounces to gallons is 0.0078125, which means that 1 fluid ounce is equal to 0.0078125 gallons:

1 fl oz = 0.0078125 gal

To convert 999 fluid ounces into gallons we have to multiply 999 by the conversion factor in order to get the volume amount from fluid ounces to gallons. We can also form a simple proportion to calculate the result:

1 fl oz → 0.0078125 gal

999 fl oz → V_(gal)

Solve the above proportion to obtain the volume V in gallons:

V_(gal) = 999 fl oz × 0.0078125 gal

V_(gal) = 7.8046875 gal

The final result is:

999 fl oz → 7.8046875 gal

We conclude that 999 fluid ounces is equivalent to 7.8046875 gallons:

999 fluid ounces = 7.8046875 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.12812812812813 × 999 fluid ounces.

Another way is saying that 999 fluid ounces is equal to 1 ÷ 0.12812812812813 gallons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that nine hundred ninety-nine fluid ounces is approximately seven point eight zero five gallons:

999 fl oz ≅ 7.805 gal

An alternative is also that one gallon is approximately zero point one two eight times nine hundred ninety-nine fluid ounces.

Conversion table

fluid ounces to gallons chart

For quick reference purposes, below is the conversion table you can use to convert from fluid ounces to gallons